... tension ,activate collaterals and improve the microcirculation of human body. 2)Release negative ions to Purify blood,to ... current of 0.06 mA, to balance the body bioelectrical. 4)Block inqjury from electromagnetic waves, water ... muscle strain, lumbar disc herniation, bone hyperplasia, arthritis, body fitness, daily protective care providers. The method of use ... needs a long time. The detailed picture: